European Conference of Ministers of Transport. (1971). European rules concerning road traffic, signs and signals: Vienna 1968-Geneva 1971. European Conference of Ministers of Transport.
Chicago Style (17th ed.) CitationEuropean Conference of Ministers of Transport. European Rules Concerning Road Traffic, Signs and Signals: Vienna 1968-Geneva 1971. [Paris]: European Conference of Ministers of Transport, 1971.
MLA (8th ed.) CitationEuropean Conference of Ministers of Transport. European Rules Concerning Road Traffic, Signs and Signals: Vienna 1968-Geneva 1971. European Conference of Ministers of Transport, 1971.
Warning: These citations may not always be 100% accurate.